At a Glance
- Tasks: Lead wastewater network modelling and mentor junior staff in a collaborative environment.
- Company: Join Southern Water, transforming the UK's water industry with innovation and sustainability.
- Benefits: Competitive salary up to £60,000, remote work, and opportunities for professional growth.
- Other info: Diverse and inclusive workplace with a commitment to innovation and excellence.
- Why this job: Make a real impact on environmental stewardship and resilient wastewater networks.
- Qualifications: 5-10 years of wastewater modelling experience and strong technical skills.
The predicted salary is between 61408 - 80000 £ per year.
Location: Remote, with occasional site visits in the South East (Brighton/ Falmer)
Contract Type: Permanent
Hours: 37
Salary: Up to £60,000 based on skills & experience
About the role:
As a Senior Wastewater Network Modeller, you will lead the delivery of high‑quality wastewater network modelling across risk assessments, growth planning, resilience studies, and optioneering. You will mentor and develop junior modellers and graduates, promoting a collaborative and technically strong team.
You will oversee and carry out wastewater modelling using InfoWorks ICM, ensuring models are robust, auditable, and aligned with best practice. The role includes improving workflows through automation, strengthening digital capability, and driving continuous process improvement.
You will review and challenge technical outputs, provide clear technical direction, and turn complex modelling insights into practical, sustainable engineering solutions. Your work will support long‑term environmental stewardship and the development of resilient wastewater networks that meet regulatory and future growth needs.
What you will be responsible for:
- Support, mentor, and train junior staff and graduates across modelling, analysis, and design tasks.
- Lead and contribute to risk assessments, growth modelling, resilience studies, and technical design projects.
- Quality‑check modelling and design outputs to ensure technical excellence.
- Produce robust outline and detailed wastewater network solutions aligned with best practice and regulatory requirements.
- Interpret modelling results and translate complex data into clear, actionable engineering recommendations.
- Lead stakeholder engagement, presenting technical findings to internal teams, clients, and regulators.
- Contribute to project planning, scoping, and programme management to ensure timely, high‑quality delivery.
What you'll bring to the role:
Essential
- Strong technical capability to lead small-scale projects
- 5 to 10 years wastewater modelling experience
- Experience delivering UK-based wastewater projects
- Chartered or close to chartered status
Desirable
- Programming experience (Python or Ruby)
- Experience with digital design and automation tools
About Southern Water
Southern Water is at the forefront of transforming Britain’s water industry, investing significantly to enhance resilience, sustainability, and service excellence. With £7.8bn planned investment for 2025-30, this is an unparalleled opportunity to join a business committed to delivering a generational shift in the way water services are managed.
You will be joining at a time of significant change, working alongside a highly skilled leadership team with a clear vision for the future. We offer an environment where senior professionals can make a meaningful impact, influence major strategic decisions, and drive long-term value creation.
Our commitment to inclusion
At Southern Water, we believe diverse perspectives drive innovation. If you’re passionate about making a positive impact and think you can bring value to our team, we’d love to hear from you—even if you don’t tick every box. Your unique skills and experiences could be exactly what we need.
If this role isn’t quite what you’re looking for but are keen to be contacted about opportunities at Southern Water, you can register your details here: Introduce Yourself.
Our Commitment to Diversity
We welcome applicants from all backgrounds, identities, and experiences. We do not discriminate based on race, ethnicity, gender, sexual orientation, age, disability, religion, or any other protected characteristic. If you need reasonable adjustments during the recruitment process, please let us know.
Additional information:
In line with Southern Water’s security requirements, successful candidates will be required to provide evidence of their identity, eligibility to work in the UK, criminal record check (DBS) and verification of their employment and/or education history for the past three years. Appointment to this role is subject to the successful completion of all pre-employment checks, including security vetting. Please note that if a candidate does not meet the required security standards or fails to pass the vetting process, Southern Water reserves the right to withdraw the offer of employment. Some positions may also require higher levels of security vetting, which may involve providing additional documentation.
Senior Wastewater Network Modeller employer: SouthernWaterServices
Southern Water is an exceptional employer, offering a dynamic and inclusive work culture that prioritises professional growth and development. As a Senior Wastewater Network Modeller, you will have the opportunity to lead impactful projects while mentoring junior staff, all within a supportive environment that values diverse perspectives and innovation. With a commitment to sustainability and significant investment in the future of water services, this role not only allows for meaningful contributions but also positions you at the forefront of industry transformation in the South East.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Wastewater Network Modeller
✨Get Involved in Local Environmental Initiatives
Dive into your local environmental scenes, like community clean-up projects or eco-focused events. Not only will you meet like-minded people, but it's a surefire way to showcase your passion and skills in environmental engineering tech.
✨Join Industry-Specific Organisations
Check out organisations like the Institution of Environmental Engineers for networking opportunities and resources. They often host events and seminars that can help us connect with key players in the industry, including potential employers like SouthernWaterServices.
✨Show Off Your Projects and Passion
Create a portfolio that highlights any relevant projects, whether it's coursework, internships, or personal initiatives. Share this online, perhaps even on platforms like GitHub or your own website, to grab the attention of hiring managers looking for talent like us.
✨Utilise Environmental Job Boards
Take advantage of niche job boards dedicated to environmental careers. Sites like Green Jobs, Environmental Career and EcoJobs often feature openings from companies like SouthernWaterServices and can help us land that full-time gig.
We think you need these skills to ace Senior Wastewater Network Modeller
Some tips for your application 🫡
Show Off Your Technical Skills:When applying for a role in environmental engineering tech, make sure to highlight your technical skills like CAD software proficiency, data analysis, or modelling techniques. These are essential for the job and should stand out in your CV and cover letter, showing how you can contribute to projects at SouthernWaterServices.
Demonstrate Your Passion for Sustainability:In this field, showcasing your passion for sustainability and environmental protection can set you apart. Include any relevant projects, volunteer experience, or courses that underline your commitment to these causes. SouthernWaterServices will appreciate candidates who genuinely care about making a difference.
Tailor Your Application to the Role:Don't just send a generic CV and cover letter. Make sure to tailor your application to the specific role of Senior Wastewater Network Modeller at SouthernWaterServices. Highlight experiences that align directly with the job description and give concrete examples of your work to demonstrate that you’re the right fit for a full-time position.
Include Relevant Certifications:If you have certifications related to environmental engineering or technology, like LEED Accreditation or any relevant software certifications, make sure to mention them. These qualifications can boost your application and show that you’re serious about your professional development in this competitive field.
How to prepare for a job interview at SouthernWaterServices
✨Brush Up on Environmental Regulations
Make sure you’re well-versed in the latest environmental regulations and standards. In an environmental engineering tech role at SouthernWaterServices, you might be asked specific questions about compliance measures, so understanding these will definitely give you an edge.
✨Showcase Your Technical Skills
Prepare to demonstrate your proficiency with relevant tools and software, such as AutoCAD or GIS. You might be given a practical problem to solve during the interview, so it’s a great idea to brush up on these skills and perhaps even bring a portfolio of your projects to showcase your technical prowess.
✨Highlight Your Passion for Sustainability
In a full-time role, employers are looking for commitment and enthusiasm. Share your experiences, studies, or projects that reflect your passion for environmental sustainability. This will show SouthernWaterServices that you're not just qualified but genuinely invested in the field.
✨Prepare for Behavioural Questions
Be ready for behavioural questions that assess how you handle teamwork, conflict, and project management. Think of examples from your studies or practical experiences where you tackled challenges effectively, showcasing both your technical and interpersonal skills.
